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Senior Application Security Engineer

Cognism · London · 2026-07-03

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<div class="content-intro"><h2 data-pm-slice="1 1 []">WHO ARE WE</h2> <p>Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting.</p></div><p><strong><span data-contrast="none">THE ROLE</span></strong><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <p><span data-contrast="none">The Senior<strong> Application Security Engineer</strong></span><span data-contrast="none"> is a key member of Cognism’s Information Security Team, reporting into the Application & Infrastructure Security Manager. Your mission is to </span><strong><span data-contrast="none">embed security by design</span></strong><span data-contrast="none"> across our engineering and product organization by integrating modern application security practices throughout the full development lifecycle.</span><span data-contrast="none"> </span><span data-contrast="none">We focus on building secure, scalable, and resilient systems while enabling the business to innovate quickly and safely. It is to drive a culture where the fastest path for our engineers is the securest path.</span><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <p><span data-contrast="none">You will work closely with Product, Engineering, Architecture, and Data teams to understand risks within our platform, including risks introduced by AI powered features, and ensure the right controls, guardrails, and security patterns are built into the product at its inception – all the while ensuring a balanced approach to the product experience that our thousands of large global enterprise customers use every day.</span><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <p><span data-contrast="none">This role is ideal for a senior IC who is </span><strong><span data-contrast="none">technical, collaborative, and pragmatic</span></strong><span data-contrast="none">, with the ability to influence engineering teams while driving hands on improvements to Cognism’s secure SDLC.</span><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <p><strong><span data-contrast="none">KEY RESPONSIBILITIES</span></strong><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <p><strong><span data-contrast="none">Security by Design & Product Integration</span></strong><span data-ccp-props="{"134233117":true,"134233118":true,"201341983":2,"335559740":300}"> </span></p> <ul> <li data-leveltext="" data-font="Symbol" data-listid="23" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"multilevel"}" data-aria-posinset="1" data-aria-level="1"><span data-contrast="none">Partner with Product, Web and Data Engineering teams from the ideation stage to ensure security requirements are considered early in feature and model design.</span></li> <li data-leveltext="" data-font="Symbol" data-listid="23" data-list-defn-props="{"335552541":1,"335559685":720,"335559991":360,"469769226":"Symbol","469769242":[8226],"469777803":"left","469777804":"","469777815":"multilevel"}" data-aria-posinset="1" data-aria-level="1">Translate product and application risks into actionable security controls, making recommendations repeatable to build guardrails and guidance that product, design, and engineering teams can apply as they scale and build the products in the teams they own.</li> <li data-leveltext="" data-font="Symbol" data-listid="23"…

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